PNF and static stretching methods were applied 2 days a week and 6 repetitions in each session for 4 weeks to the hip flexors. In addition to stretching, both of the groups received a routine treatment program consisting of gluteus maximus and quadriceps strengthening, balance, and walking exercises.

PNF and static stretching methods were applied 2 days a week and 6 repetitions in each session for 4 weeks to the hip flexors. In addition to stretching, both of the groups received a routine treatment program consisting of gluteus maximus and quadriceps strengthening, balance, and walking exercises.

Subjects lay supine on a treatment table, holding one knee to the chest and letting the other leg extend freely toward the floor at the end of the table. This protocol was adapted from previous studies. The hip joint was carefully and gradually lowered towards the floor, with the knee flexing at a 90-degree angle until the individual experienced a mild stretching sensation (Visual analog scale:4-6). Then, the subject performed a sub-maximal voluntary isometric contraction by utilizing the flexor muscles for 20 seconds while resisting the applied force exerted by an examiner through the utilization of a hand-held dynamometer (K-Force Muscle Control). The examiner proceeded to passively manipulate the leg to achieve the desired range of motion (ROM), maintaining it for 20 seconds. This process was repeated six times for each limb. The patient rested for 2 minutes before applying the same technique to the other side.

Hip extension ROM was measured with a digital goniometer while the patient was lying in the prone position, and the knee was flexed.

The degree of hip flexion contracture was determined using the Thomas test while the patient was supine. The opposite hip was passively moved in the flexion direction as much as possible by a second physiotherapist. In the meantime, the degree of hip flexion on the designated side was assessed using a digital goniometer and documented in degrees. This test was repeated 3 times, and the results were averaged.

Functional status was assessed by the Timed Up and Go test (TUG). The time required for the patient to get up from the chair, walk 3 meters, turn around, walk back to the chair, and sit down was calculated in seconds. The test was repeated 3 times, and the data average was recorded.

The Pediatric Berg Balance Scale (PBBS) was used to evaluate dynamic balance skills in children with CP. The scale comprises 14 items including sitting balance,standing balance, sitting to standing/standing to sitting, transfers, stepping, reaching forward with outstretched arm, reaching the foor, turning, and placing foot on stool items. Each item ranked from 0 to 4. 0 shows inability to perform the instruction, while 4 shows the ability to perform without any difculty. Maximum total score is 56.

Gillette Functional AssessmentQuestionnaire (FAQ) 22-item asks the respondent to 'Please ratehow easy it is for the patient to do the following activities'followed by brief descriptions of 22 locomotor skills the five-level (minumum:1, maximum:5) Likert response scale used for the 22 skill items was 'easy', 'a little hard', 'very hard', 'can't do at all',and 'too young for activity'.